I am trying to create categorized symbology for a data layer. The column that I would like to base the categories on is a result of a table join. For some reason it isn't working. All of my polygons are blue (see photo). How do I fix this?

enter image description here

  • 1
    Hard to tell from the info provided, but did you save the dataset to a new vector after you joined? Mar 5 '15 at 21:11
  • Rule based did the trick! I appreciate the help.
    – Caleb A
    Mar 10 '15 at 15:26
  • Glad it worked Caleb, I will post the comment as an answer for the convenience of others.
    – Joseph
    Mar 12 '15 at 12:52

I believe this is a bug in QGIS where using the Classify option for categorised and graduated styling only outputs a single colour for joined layers (atleast for me as I use QGIS 2.6.1 and I have dozens of joined layers).

A useful workaround is to use Rule-based styling as this recognises fields from joined layers and allows you to apply more advanced filters.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.